Frank



(No Model.)

P. C. GOOLD.

WATCH REGULATOR.

No. 266,256. Patented Oct. 17, 1882..

N, PETERS. Pnommho m hm. Wilshmgmm D C.

UNTTET) STATES PATENT Orrin-E.

FRANK O. GOOLD, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONETHIRD TO JOHNP. LOVELL, OF SAME PLACE.

WATCH-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 266,256, dated October17, 1882.

(No model.)

T all whom it may concern Be it known that I, FRANK O. GOOLD, of Boston,in the county of Sufi'olk and State ofMassachusetts,haveinventedcertainImprovements in WVatch-Regulators, oiwhich the following is a specification.

This invention has for its object to provide a regulator-operatingdevice capable of ready application to any ordinary watch adapted to toproduce a fine and accurate adjustment of the regulator, and presentinga neat and symmetrical appearance.

The invention consists in the improved devices, which I will now proceedto describe I5 and claim.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a view of the back plate of a watch-movementprovided with my improvement. Fig. 2 represents a section on line mm,Fig. 1. Fig. 3 represents a section on line 3 y, Fig. 1. Fig. 4represents a section on line 2 2, Fig. 1. Fig. 5 represents asection online a." m, Fig. i. Fig. 6 represents an end view of the nut shown inFig. 5. Fig. 7 represents a section on line y y, Fig. 5. Fig. 8represents a perspective view of the scale-plate. Fig. 9 represents anenlarged section of the nut.

The same letters of reference indicate the 0 same parts in all thefigures.

In the drawings, A represents the regulator-arm, and B represents thesegmental scaleplate, which is secured by screws 0 O to the back plateof the Watch-movement, as shown,

5 or may be similarly secured to the balancecock D in case theregulator-arm projects over the latter. The scale-plate B is provided atone end with a block or shoulder, E, in which is formed a socketreceiving a cylindrical piece or nut, F, which is adapted to rotate insaid socket, and is prevented from moving endwise by enlargements orflanges at each end. The nut F is held in the socketed block E by aplate, G, secured to the block by one of the 5 attaching-screws O, andbearing upon the outer surface of the nut without intert'erring with therotation thereof. At the opposite end of the scale-plate B is anotherblock or shoulder, I, which has an angular groove or guide, J,

receiving the end of a segmental slide or bar,

K, said slide being adapted to move lengthwise in the guide J, andprevented from rotating by its form and that of the guide. The bar K isprovided with a series of slots, L, either of which is adapted toreceive the end of the regulator-arm A, as shown in Figs. 1 and 2. Onone end of the bar K is formed a segmental screw, K, which passesthrough a partially-threaded orifice or bore, F, in the nut F. Saidorifice is necessarily tapered or increased in size from its inner toits outer end on account of the segmental form of the screw, and istherefore threaded for only a short distance at its inner or smallerend, as shown in Fig. 5.

It will be seen that the bar K and its screw K are concentric with thescale plate B, and with the center on which the regulator-arm Aturns.The nut F and guide J are arranged to guide the bar Kin a segmentalpath, which is a continuation of the curvature of the bar, so that thereis no variation under any circumstances in the distance between the barand the center on which the regulatorarm turns, norin the inclination orposition of the slots L with relation to said center. The degree ofmovement given to the regulator-arm by arotation of the nut F istherefore the same under all circumstances, and there is no movement ofthe regulator-arm into and out of the slots L. It follows therefore thatthe operator is enabled to rely upon a given movement of the regulatoras the result of a given movement of the nut, and that when theregulator is once fitted snugly in a slot L without lost motion theaccuracy of the titcannot be impaired by movement of the bar K incitherdirection. Heretofore a straight bar having a series of notches toreceive the regulator-arm and moved in a rectilinear direction by ascrew has been employed; but said bar cannot operate so satisfactorilyas my improved bar, because the distance between the bar at the pointwhere it is engaged with the regulatorarm and the center on which saidarm turns 5 changes when the regulator is operated, and the armnecessarily moves into and out of the slots in the bar.

I prefer to make the slots L slightly inclined or oblique to the arm A,as shown in Fig. 1,

to insure a closer fit of the arm in the slots. The outer end of the nutF is provided with a head, F which can be grasped for the purpose ofrotating the nut. I prefer to make the head square, as shown in Figs. 1and (i. I a so prefer to leave a cylindrical collar'or enlargement, Fupon the nut, in which I form slots 8 parallel with the sides of thehead F as shown in Fig. 6. These slots, meeting at the corners ot'thehead, i'orm openings through the cylindrical portion F in which a pinmay be inserted for the purpose of rotating the nut. The part of the barK that slides in the guide J is held down by a plate, N, which issecured by one of the attaching-screws G.

It will be seen that my improved device is neat and mechanical inappearance, accurate in operation, and can be secured to a watchplate inthe position shown in Fig. 1 without any alteration or adaptation of theplate, the screws 0 (J entering the same holes that are prepared for thescrews that attach the ordinary scale-plate.

I prefer to provide the bar K with orifices 0 between the slots L L.thin walls to said slots being thus formed which may becrowded outwardlyto contract the slots and enable them to fit the arm A more closely, ifdesired.

I prefer to give the threaded portion of the nut a resilient quality toadapt its threads more readily to the curved screw K. To this end I formone or more (preferably two) transverse cuts,T T,in thenut, eachextendin g from one side through the bore, and leaving a narrow uncutportion connecting the parts of the nut at either side of the cut. Bythus treating the not its threaded portion is enabled to conform to thecurved screw, the elit'ect being the same as if the threaded portion ofthe not were curved. The nut thus treated is adapted for use on anycurved screw. The squarehead F enables the nut F to be turned by anordinary watch-key. The block E, in which the nut F is journaled, may besplit transversely part way across, as shown at U, to give the ends ofsaid block a yielding pressure against the flanges ot' the nut, andthereby insure a close tit and prevent lost motion of the latter.

I claim- 1. The combination, with awatch-regulator, ot' asegmental barslotted to engage the arm of the regulator, and moved and guided, bymeans substantially as described, in a path that is concentric with thecenteron which theregnlator-arm turns, as and for the purpose specified.

2. The combination, with a watch-regulator, of the segmental plate B,having a guide, J, a.

journaled nnt,1 with a tapered mrtlythreaded oritice, and the segmentalbar K, adapted to slide at one end in the guide J and threaded at itsother end to engage with the nut F, as set forth.

3. The combination, with the regulator-arm, of the segmental bar K,guided and operated as described, and provided with the slots L, whichare oblique to said arm, as set forth.

4. The segmental bar K, having the slots L and the intermediateOllfit'G-S, O, as set forth.

5. The combination, with a curved screw, ot' a nut partially severed atone or more points in its threaded portion, and thereby adapted toconform to the curvature of the screw.

6. The combination, with the flanged nut F,

of the bearing E, split transversely, as described, whereby end motionof said nut is prevented, as set forth.

In testimony whereot'I have signed my name to this specification, in thepresence of two subscribing witnesses, this 13th day of June, 1882. F.LANK (J. GOULD.

\Vitnesses:

0. F. mowN, A. L. WHITE.

